Mechanical movement.



PATENTED JAN. 9, 1906.

G. W. JOHNSTON. MECHANICAL MOVEMENT.

APPLICATION FILED MAR.27, 1905.

meooeo GRAY WASHINGTON JOHNSTON, OF NEW YORK, N. Y. 7

' MECHANlCAL MOVEMENT.

To all whom it may concern:

Beit known that I, GRAY WASHINGTON JOHNSTON, a citizen of .the United States, residing at the city of New York, in the borough of Manhattan and'State of N ewYork, have invented certain new and useful Improvements in Mechanical Movements, of which the following is a full, clear, and exact description.

My invention relates to mechanical move meuts, the object of the same being to provide novel means for effecting the lateral movement of one part alternately in pposite directions from successive movements of another part in the same direction.

The invention consists of a reciprocable driving member, a driven member capable of lateral movement, the latter having a substantiallyV-shaped slot therein, and a pivotallymounted connecting-piece between the driving and driven members, the said connectingpiece having a projection thereon which is movable in said slot.

The invention also consists of certain features and details of construction and combinations of parts, which will be hereinafter more fully described and claimed.

In the drawings forming part of this specification, Figure 1 is an elevation of the device, showing the driving member in its extended position and the driven member at the limit of ready for operation. Fig. 2 is a similar view showing the positions the parts assume when the driving member is retracted. Fig. 3 is a view similar to Fig. 1, showing the next position the parts assume, and Fig. ,4 is an eleva-' tion showing the driven member at a point midway between the opposite ends of its stroke.

"The driving member 1 has. been shown as the core of a solenoid 2, mounted upon a back plate or support 3. The solenoid actsas a guide for the driving member 1, serving to constrain the movement thereof in a right line. Said driving member may, however, be any other part capable of reciprocating movement. The core 1 and the solenoid 2 have been shown as vertically disposed, so that when said solenoid is deenergized the core 1 will fall by gravity. This, however, is not essential, as these parts may be horizontally or otherwise disposed so long as means are provided for returning the driving member or core 1 to its normal outermost position." The driven member 4 has been shown in the form of a rectangular plate. It is not neces- Specification of Letters Patent.

Application an March 27,1905. Serial No. 252,244.

' Patented Jan. 9, 1906.

sary, however, that this part be a plate or that it assume the particular shape described. It is pivoted at 5 to the back plate or support 3 alnd is provided'with a substantially V-shaped s t 6. of the member 4 with the back plate 3 the same Ls capable of lateral swinging movementstih opposite directions. Theslot 6 has been shown as having the branches 7 S there- ,of extending upwardly and outwardly from their meeting point, and the pivot is located ata central point between said branches. Said ber or core 1. The side walls of the branches :7 and 8 of the slot 6 are preferably rectilinear. ,They may, however, be curved or otherwise shaped without departing from the invention. The apex 9, formed at, the intersection of the supper or inner walls of thebranches 7 and 8' of said slot, is in line with the pivot 5 and the direction of movement of the core 1 when the driven member, 4 is at a point mi way b'e-- ltween the \opposite ends of its strokes, as Eclearly shown in Fig. 4 of the drawings. Op- -'posite'the apex 9 the slot 6 is enlarged or rounded, as shown .at 10, forming pockets or recesses 1112 between said rounded portion and the branches 7 and 8 of the slot and on opfposite sides oftsaid apex. its movement in one direction, the parts being I I the sa e being pivoted at 14 to the driving membe 1 and .having a pin or projection 15 thereon which fits and moves within the slot 6. i

Cooperating with these parts is a link or connecting-piece 13,

In orderthat the driven member 4 may be frictionally held at the limit of' its movement in each direction, I have shown an arm 16, connected to said driven member, which is adapted "to be engaged by the clips 17 Any other means, howeven, for holding the driven mem- By reason of the pivotal connection I pivot is also located at a point in line with the I direction of movement of the driving memher 4 against movement may be substituted for that shown. 7

Assuming the parts to be in the positions in which they are shown in Fig. 1 of the drawings with the core 1 in extended position and the pin or projection 15 seated in the pocket '12, the operation is as follows: The solenoid 2 is energized by causing a flow of 'electric currerit therethrough, and when this is done the core or driving member 1 will. be raised ioo or retracted. The upward movement of this core OT driving member 1 raises-the link13" and causes the pin or projection 15 thereon to ride along the inclined wall of the'left-hand branch 8 of the slot 6. This latter action causes the lateral swinging movement of the a su'" driven member 4: on its pivot 5 from right to left, this swinging movement being continued until the driven member 2 reaches the end of its stroke, as shown in Fig. 2,-where it is frictionallyheld by the engagement of the arm as shown inFig. 3; Whenin this position,

it will be seen that said pin or projection'lies to the right of the apex 9 of the slot 6. Consequently upon the next upward or inward movement of the core or driving member 1 said pin or projection 15 will ride along the inclined upper wall of the right-hand branch 7 of the-slot v6, causing the swinging movement of the driven member a on its pivot 5 from left to right. When the solenoid 2 is again deenergized, the core 1 and link 13 will return to their lowermost or outermost positions, and the pin or projection 15 will finally come to rest in the pocket 12 at the left-hand end of the enlarged portion 10 of the slot6 to the left of the apex 9, as shown in Fig. 1. It will thus be seen that upon successive reciprocations of the driving member 1 in the same direction the driven member twill be laterally moved alternately in opposite directions.

This movement may be utilized for many difierent purposes-for example, the driven member a may carry. or be connected with the movable part of an electric switch or may be connected with the switch-point of a railway for the operation of the same alternately in opposite directions. 1

Having now described my invention, what I claim is 1. The combination with a solenoid of a reciprocable driving member operated by said solenoid, a pivotally-mounted driven member capable of swingingmovement transversely of said driving member, the pivotof'the driven member being in line with the direction of mgvement of said driving member and said driving member being constrained to move in the line of said pivot, and thedriven member ,being' provided with angularly-arranged walls diverging from the apex 'ormed at their meeting-point, to opposite sid s of said pivot, and a connecting element pivoted to said driving member and dependent therefrom and carrying a projection adapted to ride upon and en-,

gage said walls, alternately, being shifted fro one to the other, by gravity together he cammlng action of said walls upon in the samefd'irection.

s's'ive movements of the driving member soaeee driving member, of a pivotally -mounted 5 driven member capable of swinging movement transversely of said driving member, the line of reciprocation of said driving member always containing the pivot of the driven member, the said driven member being provided with a substantially V shaped slot whose branches diverge to points on opposite sides of the pivot and whose central portion is enlarged, forming pockets on opposite sides of the apex formed at the intersection of the upper or inner walls of said branches, a connecting element pivoted to said driving member and carrying a projection which is movable in said slot, which seats itself in one or the other of said pockets by virtue of gravity and the camming action of said slots when said driving member is in retracted position. and which engages the walls of said slot, alternately, upon successive movements of said driving member in the same direction, and frictional means for retaining said driven member at the limit of its movement in each direction, whereby the driven member is moved in alternate d1- rectionsupon each reciprocation of the driving member.

3. in a device of the class described, a support or frame, a solenoid disposed upon said frame, contacts also mounted on said frame, a member pivoted upon said frame to swing into engagement with said contacts alternately and having cam-surfaces thereupon, a core slidably mounted in said solenoid, a link pivoted to said core and having a part engaging said cam-surfaces, frictional means for bolding the pivoted member in either of its extreme positions, whereby said pivoted link is oammed into engagement with alternate camsurfaces upon the pivoted member at sucessive actuations of the core of the solenoid.

e. The combination of a reciprocating driving member, a guide therefor arranged to constrain the movement of said reciprocating member in a right line, a pivotally-mounted driven member capable of swinging movement transversely of said driving member, the pivot of the driven member being in line with the direction of movement of said driving member, and the driven member being provided with angularly-arranged walls diverging from the apex formed at their meetingpoint, to opposite sides of said pivot, and a connecting element pivoted to said driving member and carrying a projection adapted to engage said walls, alternately, upon successive movements of the driving member in the same direction."

' In witness whereof I subscribe my signature in the presence of two witnesses.

.. GRAY WASHINGTON JOHNSTON.

Witnesses: I

WM. M. S'rooKBmneE, WALDO M. CHAPIN.

IIO 

